Long answer question : a submarine descended 3/5 of a kilometer in 1/5 of an hour. what was the submarine's rate of descent in kilometers per hour ? plz show work and explain: )

The Submarine's rate of Descent is

Step-by-step explanation:

we know that

To find the Submarine's rate of Descent apply proportions

so

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine